realtime replication with two host

[openaspace]

Hi.
It's possible to replicate one host to a second host? (only two host in the cluster, no shared storage)
Main server in a data center,
second server (DELL T310) in my office with public ip and fiber connection.

I need to have a working copy of the remote virtual machines in the main host in the case it fail,
but in the reality I don't need advanced automatic switch from one host to other.

It's better to setup two single host in different remote locations, or simply backup the vm's of the main host and in the case of a fail, start the backuped virtual machines manually?

A single proxmox host can replicate itself to a second host over public wan?

 

[wolfgang]

Hi,

if you have two sides a cluster will make trobles.
Install two independent nodes and use pve-zsync [1] to replicate the VM.
You can set the sync interval to one every minute.

1.) https://pve.proxmox.com/wiki/PVE-zsync

 

[openaspace]

Really thank you wolfgang.

When using the slave node in this modality , I can use it at the same time to virtualize other machines?

 

[wolfgang]

Yes, you can.
Ther is one thing to watch out for.
Do not use the same Dataset (PVE Storage definition) for the backup and running guests.
Because this has the potential to mix vdisk when VMID overlapping.